TY - JOUR
T1 - Measurement of dynamic retention with fast ejecting system of targeted sample (FESTA)
AU - Yue, Qilin
AU - Hanada, Kazuaki
AU - Oya, Makoto
AU - Matsuo, Shogo
AU - Kojima, Shinichiro
AU - Idei, Hiroshi
AU - Onchi, Takumi
AU - Kuroda, Kengoh
AU - Yoshida, Naoaki
AU - Ikezoe, Ryuya
AU - Liu, Yukai
AU - Hasegawa, Makoto
AU - Shimabukuro, Shun
AU - Higashijima, Aki
AU - Nagata, Takahiro
AU - Kawasaki, Shoji
N1 - Funding Information:
This work was supported by QUEST team. This work was also supported by a Gran-in-Aid for JSPS Fellows (KAKENHI Grant Number 16H02441, 19H05526) and the NIFS Collaboration Research Program (NIFS05KUTRO14, NIFS19KUTR136). This work was also supported in part by a Grant-in-Aid for JSPS Fellows (KAKENHI Grant Number 19H05526), the Collaborative Research Program of the Research Institute for Applied Mechanics, Kyushu University and the JSPS-NRF-NSFC A3 Foresight Pro-gram in the field of Plasma Physics (NSFC: No. 11261140328). I am also grateful to Dr. Roger Raman from University of Washington, Seattle, for discussing and giving me lots of meaningful advice about the manuscript.
Publisher Copyright:
© 2020 The Japan Society of Plasma Science and Nuclear Fusion Research.
PY - 2020
Y1 - 2020
N2 - Fast Ejecting System of Targeted sAmple called FESTA has been developed to carry out the measurement of dynamic hydrogen retention by a test sample. A sample can be exposed and extracted from the targeted plasma at any time using FESTA, however, when exposing the sample, the test chamber wall gets coated by some hydrogen as it is open to the QUEST vacuum vessel. We refer to this as the plasma-induced background. To measure the amount of hydrogen retained by the sample itself, the contribution from the plasma induced background must be subtracted from the measurements. To measure the accurate dynamic retention from plasma-exposed sample, a background subtraction model has been developed and tested. The initial testing shows that the FESTA system and model can estimate the dynamic hydrogen retention by a target test sample.
AB - Fast Ejecting System of Targeted sAmple called FESTA has been developed to carry out the measurement of dynamic hydrogen retention by a test sample. A sample can be exposed and extracted from the targeted plasma at any time using FESTA, however, when exposing the sample, the test chamber wall gets coated by some hydrogen as it is open to the QUEST vacuum vessel. We refer to this as the plasma-induced background. To measure the amount of hydrogen retained by the sample itself, the contribution from the plasma induced background must be subtracted from the measurements. To measure the accurate dynamic retention from plasma-exposed sample, a background subtraction model has been developed and tested. The initial testing shows that the FESTA system and model can estimate the dynamic hydrogen retention by a target test sample.
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U2 - 10.1585/PFR.15.2402013
DO - 10.1585/PFR.15.2402013
M3 - Article
AN - SCOPUS:85085729034
SN - 1880-6821
VL - 15
SP - 1
EP - 5
JO - Plasma and Fusion Research
JF - Plasma and Fusion Research
ER -